Bios update for gemlight 486sps motherboard

Hopefully someone out there knows where to get a free bios flash for this motherboard.Alegedely the HD crashed,but i'm not so sure as i've tried auto detecting and manually putting in 3 different hard drives in cmos(one as old as 10-2-96)and all i get is hard disk fail(80) or when i go past that to fdsik it says error comunicating with drive c:.Is it possible that the bios will not even recognize a HD that is only one year older than the bios?It's an Award bios dated 1995.Would the cmos battery being dead cause this to happen?It saves the settings i put into cmos and keeps the correct time and date so i'm doubting it's the cmos battery.HEEEEELP Please!Thanks in advance,Drewpy